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Finding the Fourth Proportional to 203,809.40, 305,714.10 and 56,065.40

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Solution

The fourth proportional to 203,809.40, 305,714.10 and 56,065.40 is: 84,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,809.40 : 305,714.10 = 56,065.40 : x
  2. Step 2: Convert to fraction form
    203,809.40/305,714.10 = 56,065.40/x
  3. Step 3: Cross multiply
    203,809.40x = 305,714.10 × 56,065.40
  4. Step 4: Simplify right side
    203,809.40x = 17,139,983,302.14
  5. Step 5: Solve for x
    x = 17,139,983,302.14/203,809.40
  6. Step 6: Final answer
    x = 84,098.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.